Shanghai Xinfan Container Fittings Co.,Ltd is the oldest and biggest manufacturer of security seals in China since 1984 and one of the leading seal manufacturers in the world. Our facilities covering 40,000 sqm are certified to ISO 9001:2008 and comply with ISO/PAS 17712:2006---Seal Manufacturers' Best Practices. We are the only Chinese member of US-based International Seal Manufacturer Association(ISMA). The ISMA members are all the most important seal manufacturers accross the world. We sell over 100 million seals each year.